ZIP Codes of Forest County, WI

Population & People
Population & People
Total Population
8,706
Household Income
Household Income
Median Income
$60,808
Housing
Housing
Total Housing Units
7,162
Business & Economy
Business & Economy
Total Businesses
211
Employment
Employment
Employment Rate
49.52%
Education
Education
Bachelor's Degree+
15.77%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:534 / 715
Timezone:Central (GMT -06:00)
Local Time:2:14:18 PM
Population:8,706 [See All]
FIPS:55041
Land Area:800 sq mi
Water Area:22 sq mi
Coordinates:45.5807, -88.6962
Quick Link:
https://www.zip-codes.com/county/wi-forest.asp
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Wisconsin's #68 most populous county
8,706 residents across 5 ZIPs — #68 of 73 Wisconsin counties.

Standout ZIPs in this County


Most Populous
Crandon · 3,764 people
43.2% of county total
Highest Income
Argonne · $66,719 median
1.1× county average
Largest Land Area
Argonne · 295.3 sq mi
Spans the most ground
Fastest Growth
Laona · 20.2% (10-yr)
1,299 → 1,561 residents
Most Educated
Laona · 18.2% bachelor's+
192 of 1,053 adults 25+

Things worth knowing about Forest County


8,706 residents live across 5 ZIPs covering 800 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 8,683 to 8,706 from 2014 to 2024 — a +0.3% change. 4 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 54511 (Argonne, $66,719 median) and poorest ZIP 54566 (Wabeno, $56,250) are 22.5 miles apart — a 1.2× income gap across local geography.

Median home values vary 1.2× across this county — from $169,800 in 54520 (Crandon) to $209,400 in 54566 (Wabeno).

Density varies across the county — from 5 people/sq mi in 54511 (Argonne) to 30 in 54520 (Crandon).

Educational attainment ranges from 14.1% bachelor's+ in 54511 (Argonne) to 20.5% in 54103 (Armstrong Creek) — the breadth of educational profiles across the area.

Within Wisconsin, this is the #68 most populous of 73 counties and ranks #65 for median household income .

Weighted by population, the typical household earns about $60,932 across the county — reflecting what a typical resident sees, not a simple ZIP average.

15.8% of adults age 25+ hold a bachelor's degree or higher (1,011 of 6,409 reporting).

5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Forest County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
800
square miles
Avg density
10.9
people per sq mi
Population
8,706
across 5 ZIPs
Argonne
295.3 sq mi
1,393 residents
Laona
159.0 sq mi
1,561 residents
Wabeno
147.1 sq mi
1,453 residents

All ZIP Codes in Forest County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
54520CrandonStandard3,764$60,031125.2-11.7%
54541LaonaStandard1,561$63,438159.020.2%
54566WabenoStandard1,453$56,250147.13.8%
54511ArgonneStandard1,393$66,719295.37.4%
54103Armstrong CreekStandard535$57,60473.826.5%

Adjacent & Nearby Counties